Question

multiple - choice question
what functional group does the suffix -al represent?
ketone
alkyl
alcohol
aldehyde

Explanation:

In organic chemistry, the suffix -al is used to denote an aldehyde functional group. An aldehyde has a carbon - oxygen double bond (C=O) with the carbon atom of the C=O bonded to at least one hydrogen atom. Alkyl is a general non - functional group term for hydrocarbon substituents, alcohol has the -OH functional group denoted by the suffix -ol, and ketone has the suffix -one.

Answer:

Aldehyde